Well I just started wing chun classes, and I want to know how I can use wing chun against "BIGGER" people, like fat people how can I defend against taller fatter people. "BUT" my friend tried to to hit me, and I took of my back pack then through it at him,and I though like 6 fast punches, but my eyes were closed cuz the sun was in my face, but I hit him and he jumped on the side put his hand on my shoulder and pushed me, now I know that I got got good hit on him,but is there anything I should do to not make those mistakes.